SP&S diesel locomotive Number 803, an EMD F7A, with passenger Train Number 2, at Avery, Washington on May 11, 1969. Photo by Frank Seufert.

SP&S diesel locomotive Number 81, an American Locomotive Company (ALCO) RS-3, pulling a train past the Vancouver, Washington yard office, undated.

SP&S diesel locomotive Number 82, an American Locomotive Company (ALCO) RS-3, switching an industry in Stevenson, Washington in July 1969. Photo by Robert Johnston.

SP&S diesel locomotive Number 853, an American Locomotive Company (ALCO) FA-1, with a freight train by the Great Northern back shop at Hillyard, Washington, April 18, 1951. Photo by Warren McGee.

SP&S diesel locomotive 856, an American Locomotive Company (ALCO) FA-1, in an A-B-B-A configuration on engine house track at Wishram, Washington, undated. From the Oregon Historical Society Collection.

SP&S diesel locomotive 856, an American Locomotive Company (ALCO) FA-1, in an A-B-B-A configuration on engine house track at Wishram, Washington, undated. From the Oregon Historical Society Collection.

SP&S diesel locomotive Number 856, an American Locomotive Company (ALCO) FA-1, with a freight train, February 1970.

SP&S diesel locomotive Number 859, an American Locomotive Company (ALCO) FA-1, with a freight train, passing another freight train at Avery Washington, May 11, 1969. Photo by Frank Seufert.

SP&S diesel locomotive Number 860, an American Locomotive Company (ALCO) FA-1, leads an A-B-B-A set of locomotives westbound across the Burr Canyon trestle, undated. From the Oregon Historical Society Collection.

SP&S diesel locomotive Number 862, an American Locomotive Company (ALCO) FA-1, with a freight train by the Great Northern back shop at Hillyard, Washington, undated. Photo by Robert Johnston.